Sandwich box



FIG. 1 is a front prospective view of a sandwich box showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a left elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevation view thereof; and,

FIG. 8 is a open prospective view thereof.

In the drawings, the broken lines represent serrations in the box and form a part of the claimed design. 

The ornamental design for a sandwich box, as shown and described. 